#include <stdio.h>

int catvars(char *buf1, char *buf2, unsigned int len1,
		unsigned int len2){
	char mybuf[256];

	if((len1 + len2) > 256){
		return -1;
	}

	memcpy(mybuf, buf1, len1);
	memcpy(mybuf + len1, buf2, len2);

	return 0;
}

int main( void )
{
	
}

